低碳生活:使用 cpufrequtils降低CPU温度

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cpufrequtils可以根据不同的方案自动调节CPU的频率,从而达到在系统空闲时降低CPU温度、节省电力的目的。

Archlinux官方wiki已经介绍得很明白了:http://wiki.archlinux.org/index.php/Cpufrequtils_(简体中文)

使用后效果明显,CPU温度有所下降,下面是cpufrequtils在Arch上的工作情况:

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[lenin@archer ~]$ cpufreq-info 
cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.53 GHz
  available frequency steps: 2.53 GHz, 2.53 GHz, 1.60 GHz, 800 MHz
  available cpufreq governors: ondemand, performance
  current policy: frequency should be within 800 MHz and 1.60 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.
analyzing CPU 1:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1
  CPUs which need to have their frequency coordinated by software: 1
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.53 GHz
  available frequency steps: 2.53 GHz, 2.53 GHz, 1.60 GHz, 800 MHz
  available cpufreq governors: ondemand, performance
  current policy: frequency should be within 800 MHz and 1.60 GHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  current CPU frequency is 1.60 GHz.

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